Notifier NFS-3030/E, Руководство по программированию

Страница: 118 / 144

CBE: Zones and Equations Equations
118 NFS-3030 Programming Manual P/N 51345:C 11/4/03
•Logic functions may be used in an equation that begins with a DEL or SDEL time-based function:
however, they must appear within parentheses following the time-based function.
Delay and duration times are in 24-hour format (HHMMSS); the allowable range is 00:00:00 to 23:59:59.
The “DEL” Function
Used for delayed operation.
Example: DEL(HH.MM.SS, HH.MM.SS,AND(L1M1,L1M140))
•The first HH.MM.SS is the delay time, the second HH.MM.SS is the duration time. If the
argument - AND(L1M1,L1M140) - in the example above activates, the function becomes
true after the argument has been active for the delay time, and continues to be true for the
duration time as long as the argument stays active. If the argument goes inactive during
the delay time or the duration time, the function reverts to false and the timing would
begin all over again if reactivated.
•If duration time of zero is entered (00.00.00), the equation will evaluate true when the delay
time expires if the argument remains active throughout the delay time period.
•If no duration or delay is specified, then the function will follow the input argument,
indicating true while it is active and false when it is inactive. DEL assumes a value of false
on reset.
The “SDEL” Function
A latched version of the DEL function.
Example: SDEL(HH.MM.SS, HH.MM.SS,L1M140)
•The first HH.MM.SS is the delay time, the second HH.MM.SS is the duration time. If the
argument (L1M140 in the example above) activates, the function becomes true after the
delay time, and will remain active for the duration even if the argument becomes inactive
during either the delay or duration time.
•If delay time of zero is entered (00.00.00), the equation will evaluate true as soon as the
argument (L1M140) activates and will remain that way for the specified duration, even if
the argument becomes inacative during that time.
•If no duration or delay time is specified, then the argument will not deactivate until reset, even
if the argument becomes inactive.
The “TIM” Operator
The TIM function is used to specify activation on specific days of the week or year.
Examples:
TIM(7-11-02) will evaluate as true for 24 hours starting at midnight (00:00:00) on July 11, 2002.
TIM(MO,TU,WE,TH,FR,08:00:00,23:00:00) will evaluate as true at 8:00 AM and remain true
until 11:00 PM (23:00) for the list of days supplied.
TIM(MO,TU,WE,TH,FR,08:00:00) will evaluate as true at 8:00 AM and remain true until 23:59:59
of the current day for the list of days supplied.
TIM(TU,07:45:00,18:30:00) will evaluate as true every Tuesday between 7:45 AM until 6:30 PM.
TIM(MO,TU,WE,TH,FR) will evaluate as true from Monday morning at 12:01 AM until Friday
evening at 11:59:00 PM.
Logic Equation Syntax Example
OR(AND(L1D1,L1D4),AND(L2D6,L2M3,NOT(L2M4)),ANY2(L1M13,L1M14,L1M15))
Equation begins with a logic function - OR
67 Characters (maximum of 80) - includes parentheses and commas.
www.PDF-Zoo.com